feat: Added CW1155 support

[javiersuweijie]

Added CW1155 support addressing #10

test result: ok. 32 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s

   Doc-tests cw-asset

running 30 tests

[larry0x]

thanks @javiersuweijie, will review soon

[larry0x]

@javiersuweijie i'm going to merge this PR now, and introduce a few changes in a separate PR.

two questions:

besides unit tests, have you tested this with an actual cw1155 contract in a testing environment, such as localterra?

do you want your name to be added to the authors list in Cargo.toml? if yes, do you wish to provide an email?